Answer:
The correct answer would be - the small brain and large canines of Ardipithecus
Explanation:
According to Charles Darwin's Hunting Hypothesis about bipedalism hominins adapt bipedalism in order to free their hands to create and carry weapons.
According to this hypothesis, hominins like Ardipithecus were bipedal yet had a little mind and enormous canines, which blocked its capacity and need to make weapons. The advanced proof found from this fossil evidences of species and others shows that, in spite of Darwin's speculation, bipedalism originated before a decrease in canines and an expansion in mind size.
Thus, the correct answer is - the small brain and large canines of Ardipithecus
Two resistors or resistance 2ohms and 4 ohms are connected in series and then in
parallel what is the ratio of their
respective resistance
Answer:
Ratio = 9 : 2
Explanation:
We have been given two resistors, one with 2ohms rating and another with 4 ohms rating.
First they are connected in series. When resistors are connected into series, Equivalent resistance is given by:
Resistance (Equivalent) = R₁ + R₂ = 6 ohms
When these are connected in parallel, equivalent resistance becomes:
1 / Resistance (Equivalent) = 1/R₁ + 1/R₂ = 1/2 + 1/4
1 / Resistance (Equivalent) = 3/4
Resistance (Equivalent) = 4/3
Ratio = R(Series)/ R(Parallel)
Ratio = 6 : 4/3
Ratio = 18 : 4
Ratio = 9:2
Represente, por meio de esquemas: A. Raízes com estrutura primárias e com estrutura secundária; B. Caules com estruturas primária e com estrutura secundária.
Answer:
Explanation:
respondeu em inglês. obrigado
Fill in the blank Blank 1 -they share a common ancestor -they do not share a common ancestor -they are not linked through evolution Blank 2 -the Archaeopteryx evolved from birds -the Archaeopteryx came after dinosaurs but before birds -the Archaeopteryx evolved before nonflying dinosaurs
Answer:
1) they share a common ancestor
2) the Archaeopteryx came after dinosaurs but before birds
Explanation:
Birds, dinosaurs and Archaeopteryx evolved from a common ancestor so we can say that they share a common ancestor. With the passage of time, changes occurs in the structure of an organism and a new species is formed. Same events occurs with ancestor of birds, dinosaurs and Archaeopteryx. Archaeopteryx is a transitional fossil that comes after the dinosaurs and before the birds. Archaeopteryx is also known as the first on the earth. With the passage of time some dinosaurs bears wing and then converted into birds.
Help!!!! :( please !
Answer:
1. May
2. September
3. February and December
4. 42°F
Explanation:
Reviewing the given data for the weather of Alexandria, Virginia as shown in the data set attached, we have the following:
1. The month with the most precipitation is MAY (3.99 on average)
2. SEPTEMBERhas a record low of 36° F
3. FEB. and DEC both have an average high of 47°F
4. Difference in °F between record high and record low in October = 68°F - 26°F = 42°F
About 70% of the human population can taste the bitter chemical phenylthiocarbamide (PTC), which is found in foods like broccoli. The allele, T, for tasting PTC is dominant over the allele, t, for not tasting it. Calculate the allele frequencies using the Hardy-Weinberg equation, where p represents the dominant allele frequency, and represents the recessive allele frequency. Which of the following is closest to your results?
A. p = 0.45; q = 0.55
B. p = 0.84;q0.55
C. p = 0.70;q=0.30
D. p = 0.84; q = 0.16
Answer:
c
Explanation:
If a fat source is counted towards an individual's discretionary calories, what does this mean?
a. This fat source should account for 30% of the daily fat intake.
b. This fat source supplies essential fatty acids.
c. This fat source can be consumed in great quantity with no adverse health effects.
d. This fat source is high in saturated fat and its intake should be limited.
e. This fat source should be a consistent part of a person's diet.
The correct answer is D. This fat source is high in saturated fat and its intake should be limited.
Explanation:
In nutrition, the term "discretionary calories" refers to extra calories that are not part of nutritional requirements but can be consumed sporadically. In the case of fat sources, this includes foods such as cheese, butter, or fried foods that contain high levels of fat, especially saturated fat, which contributes to heart disease and other conditions. Due to this, these types of food are consumed as part of "discretionary calories", which means their intake is not essential and should be limited. Thus, if a fat source is counted towards discretionary calories it means it should not be consumed daily but its intake should be limited because it contains saturated fat (Option D).
Pollen grains help scientist
Answer:
true
Explanation:
Pollen grains help scientists identify plants and make assumptions on past climate conditions. understand tree growth and make assumptions on past climate conditions.
Answer:
A
identify plants and make assumptions on past climate conditions.
Which of the following was most surprised by Jacob Riis's descriptions of living conditions in New York City tenements in 1890?
Answer:
People who lived in tenement apartments.
Explanation:
which describes one of oxygen's roles in Earth's atmosphere
Answer:
Oxygen: Oxygen is one of the essential gases for the living beings to survive. The plants produce oxygen as a result of photosynthesis and it has a wide range of role in Earth's atmosphere. Roles: Allows fuels to burn - Oxygen is the reason for combustion. Hope this helps :))
Explanation:
Answer:a on edg
Explanation:
Chemical reactions move at different speeds. When a chemical reaction is moving at a slow speed, what can be done to speed up the reaction? Adding an enzyme to decrease the activation energy of the reaction Adding an inhibitor to prevent enzymes from interfering with the reaction Decreasing temperature to prevent products from becoming denatured Decreasing pH to increase enzyme activity
When a chemical reaction is moving at a slow speed, adding an enzyme to decrease the activation energy of the reaction is typically done to speed up the reaction. Thus, the correct option is A.
What is a Chemical reaction?A chemical reaction may be defined as a process through which two or more substances known as reactants are combined in order to form a new substance known as a product. It represents the random rearrangement of certain chemical to derive a new one.
Every chemical reaction has its own activation energy which is high or low. Chemical reactions that have high activation energy generally proceed at a slow rate. At this moment, the addition of an enzyme or catalyst typically lowers this activation energy and thus increases the rate of reaction.
Therefore, the correct option for this question is A.
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1 Point
Salmon feed on shrimp, and humans eat salmon. Which role do both shrimp
and salmon play in this situation?
A. Host
B. Prey
C. Predator
D. Parasite
Answer: B. Prey
Explanation:
The shrimp is the prey (or food) of the salmon and the salmon is the prey of humans.
Answer:
B
Explanation:
How does fever indicate that your body's immune system is doing its job?
A. Fever increases white blood cell production.
B. Fever raises the body's temperature to destroy harmful substances.
C. Fever triggers inflammation.
D. Fever causes the secretion of hormones that fight harmful substances.
Fever indicates that the immune system is functional by raising the body's temperature to destroy harmful substances.
What is Fever?This is defined as a temporary increase in the temperature of the body as a result of sickness etc.
This rise in temperature helps to destroy harmful substances which are temperature sensitive thereby making option B the most appropriate choice.
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Answer:
B. Fever raises the body's temperature to destroy harmful substances.
Explanation:
Edge. 2021 says it correct.
What is adaptation, and how does adaptation relate to natural selection?
Answer:
the process of being adjusted in any environment is called adaptation.
adaptation is related to natural selection as it has described that those organisms which are fittest only can reproduce and continue their generations . so if the organisms can adapt themself and can be fitted then they van evolve themselves.
WILL MAKE BRAINLIST
If an ecosystem is disturbed, goes out of balance, and cannot return to a state of equilibrium, the species living there will most likely____.
A. find new resources
B. become overpopulated
C. become extinct
D. find new habitats
Answer:
C. become extinct
Explanation:
We become more likely to be extinct once the habitat is disrupted. So, C.Become Extinct would be the correct response. When no food or supplies are available, certain species won't have milk, ensuring that species starve and humans starve, end up becoming extinct!
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Hope this helps!
Brainliest would be great!
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With all care,
07x12!
What are the ways to protect our eyes from diseases
Answer:
Wear Sunglasses that are Polarized sunglasses to protect you eyes
Use Goggles when ur in a pool
Protect Against Chemicals
Wear eye protection (like sunglasses) on a hot day during outdoor activities
Eat Healthy and Drink Plenty of Water
And don't watch horror movies to protect ur eyes and mind :I
Hope This helped you.
Continue adding new species to your volcanic island until you have a successful ecosystem. Drag and Drop the species in order to how they invade the volcanic island. Lichen, Climax community, Bushes, Primary consumers, Pollinators, Moss, Secondary consumers, Trees, Tertiary consumers, Flowers, and Grass
Answer:
The order of arrangement is as follows
Lichen →Grass → Moss → bushes → Flowers → Pollinators → Trees → Primary consumers → Secondary consumers → Tertiary consumers
Explanation:
The type of succession that results in a successful ecosystem where initial soil condition is a volcanic island devoid of life any life form and without a soil formation is that of primary succession and involves the gradual ecosystem growth in a long time duration
Organic activity in primary succession is started by pioneer organic species which develop a community of interacting organisms from their biological activities resulting in the arrival of new species and the continuing development simple initial community into a successful complex ecosystem.
Geneticists have discovered the existence of meiotic drive genes, which have alleles that, when present in a heterozygous state, are able to become incorporated into much more than 50 percent of the gametes. As a result, the offspring ratios are not what Mendel would have predicted. Which statement about these meiotic drive genes is true
The given question is incomplete as the statements are not give, however, the the answer is given on the general knowledge about the question:
Answer:
The correct answer would be - They violate the law of equal segregation.
Explanation:
According the first law of Mendel, the law of segregation that says that during gamete formation, the two alleles, present at a gene locus segregate from one another and each gamete has 50% of containing any of two allele.
In meiotic drive genes, the alleles present are if present in a heterozygous state, are able to become incorporated into much more than 50 percent of the gametes which is against the law of segregation.
The correct answer would be - They violate the law of equal segregation.
Which statement describes gravity?
There is no defined unit of measurement for gravity.
O Gravity is the force that pulls objects toward Earth's center.
Objects that have a small mass will have no gravitational pull.
Gravitational pull between two objects decreases as the mass of one increases.
Answer:
Gravity is the force that pulls objects toward the Earths centre
Explanation:
Answer:
O gravity is the force that pulls object towards Earths centre.
Explanation:
How is the growth of land plants proof that there is carbon in the atmosphere? How does carbon exist in the atmosphere, biosphere, and geosphere all at the same time? (Site 1 )
Plants take the CO2 from the atmosphere which is used in Calvin's cycle to synthesize organic compounds that end up building the plant. This fact can be proved by marking the atmospheric CO2 with radioactive isotopes of carbon, afterwards using a Geiger counter the plant will present radioactivity.
The carbon in the atmosphere is most commonly found in the form of CO2
it has a concentration of 0.04%.CO2 is a byproduct of aerobic respiration
or combustion, for example, C6H12O6+6O2-->6CO2+6H2O. The CO2 is then used by plants in photosynthesis as mentioned earlier.
Carbon is present in the biosphere because all life is made of carbon.
Carbon is present in the geosphere most commonly under the form of hydrocarbons like methane(CH4). The carbon present in geosphere is a result of organisms decay and metabolic byproducts. For example, methanogen bacteria synthesize methane in anaerobic conditions reducing hydrogen in the presence of CO2(CO2+4H2⇒CH4+2H2O). Carbon in the geosphere can also be found in coal that becomes diamond under extreme pressure and temperature.
Carbon element exists in various parts of the atmosphere in the form of gases such as carbon dioxide. The growth of land plants proof that there is carbon in the atmosphere as they perform photosynthesis.
What is Atmospheric carbon?The atmospheric carbon refers to the carbon dioxide which is present in the atmosphere. The main source of this carbon dioxide is respiration in animals.
There is an exchange of carbon from the atmosphere, vegetation, soils and the organic matter of the atmosphere, ocean and fossil fuels all of these are continually changing. The carbon cycle is the cycle through which carbon is exchanged among the various parts of the globe that is the biosphere, geosphere, and atmosphere of the Earth.
The growth of land plants is a proof that there is carbon present in the atmosphere because the land plants use carbon dioxide and water to grow. Carbon dioxide and water are both the gases and important part of the atmosphere, so when they are combined they usually form a liquid. This liquid is then absorbed by the plants and they use it to make their own food through photosynthesis.
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Research wolff's law. how does the formation of torus mandibularis relate to this theory?
Answer:
According to wolff (German Anatomist and Surgeon),the adaptation shown by a bone in an healthy animal or human depends on the loads it bear.Therefore, changes in the structure or type load the bone bears, will lead to a corresponding change in the bone bearing the load.A practical example is the development of the bone in hand used by a professional tennis player to hold racket.The bones of this hand usually appear stronger and well developed than the other hand.
When a bony outgrowth, emerges in the mandible close to the surface of the tongue, this outgrowth is called Torus mandibularis. It is commonly found near the premolars, in a bilateral conditions. It is common among the Asian and the indigenous people of Canada, Greenland and Alaska(the Inuit).
If it is caused by bruxism (teeth grinding)This will create stress on the impacted bone.Therefore based on Wolff's theory, the impact of this local stress,(teeth grinding) may cause transformation in the shape of the part of the mandible associated with the teeth,an therefore leads to the bony outgrowth.
This theory may also be interpreted with Lamarck theory of use and disuse.
The formation of the torus mandibularis relates to this theory - this bone help in adapt the extra stress by grinding teeth.
Wolff's lawThis law states that if a bone is under continuous stress or load, then internal as well as external structural changes would take place in the bone that helps to adapt the bone to bear increased mechanical stress.
Torus mandibularis is a bony extension near the base of the tongue. Due to the continuous grinding of teeth the load on the underlying bone increases. Torus mandibularis helps to cope with extra stress caused due to grinding of teeth.
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which of the following best describes the process of conjunction
Answer:
there is not any options given..
Explanation:
but conjuction is a noun.it joining together elements..
for an example i can both play volleyball and football ...
hope this help you.
When compared to a cheek cell a muscle cell contains more
cheek cells come from a non-keratinized squamous stratified epithelium. Those cells contain only one central nucleus. The muscle cell(i believe you are referring to a striated muscle) contains more nuclei
Cheek cells are a type of skin cell.
Muscle cells are responsible for movement in and out of the body. Muscle cells are elongated and possess contractile proteins like actin, and myosin.
What is the difference between a cheek cell and a muscle cell?Cheek cells are a type of skin cell. Muscle cells are responsible for movement in and out of the body. Muscle cells are elongated and possess contractile proteins like actin, and myosin. These proteins carry out contraction and relaxation of muscles and cause body movement.
What does a muscle cell have more of compared to a skin cell?Muscle cells have more mitochondria because muscles use mitochondria to produce energy which allows for movement.
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.
The size of the stem increases in the width due to the ........... meristem.
Answer:
Intercalary
Explanation:
There are three types of meristems : apical, lateral and intercalary.
These are found at different parts of the plant, but their ultimate job is to multiply and so increase the length of the plant.
The length of the stem is determined by the apical meristem, which is found at the tip of the plant.Of this meristem múltiples, the plant grows taller.
The root of the meristem is determined by the lateral meristem, which is found at the bottom of the plant, near the roots.
The thickness of the plant is determined by the intercalary meristem, which is found at the centre of the plant, and when they multiple, the plant increases in width.
Hope this helps.
Good Luck.
Which of these is an environmental cost of fossil fuel consumption?
Answer:
increased greenhouse gasses
Explanation:
The arrow is pointing to sodium's:
A) Number of neutrons.
B) Number of valence electrons
C) Combined number of neutrons and protons
D) Combined number of electrons and protons
Answer:
d. Combined number of electrons and protons
Explanation:
The arrow is pointing to Sodium atom's atomic mass or mass number which is the combined number of neutrons and protons. Thus, the correct option is C.
What is Atomic mass?
The atomic mass is also known as mass number or nucleon number. It is the total number of protons and neutrons which are present in the nucleus of the atom. Atomic mass is approximately equal to the atomic mass of the atom which is expressed in atomic mass units.
The atomic mass is the combined number of neutrons and protons in the nucleus of the atom. In the Sodium atom, the number of protons is 11 and the number of neutrons is almost 12. Therefore, the atomic mass of Sodium is 22.99 which is approximately equal to 23 atomic mass units.
Therefore, the correct option is C.
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explain the structure of nephrons
Structure of nephron : The filtration units in the kidney are called nephrons. Each kidney has a large number of nephrons which are packed closed together. Nephrons consist of a cup shaped Structure called Bowman's capsule in which a cluster of very thin walled blood capillaries form glomerulis . This cup shaped structure is followed by long tubular structure which is convoluted , twisted and finally leads to the collecting duct.
Functions of nephron : : Nephrons help in filtering nitrogenous waste from the blood. The blood entering the glomerulus contains waste which are filtered in the Bowman's capsule. The filtrate formed may contain some useful substances such as glucose, amino acids, salts and a major amount of water. These are selectively reabsorbed as the urine flows along the tube, The amount of water reabosrbed depends on how much excess water is there in the body andhow much dissolved waste there is to be excreted .
* For structure of nephron * refer to attachment !
what two things warm water
Answer:
To put it on heat it can warm water.
Explanation:
Answer:
Boiler and a kettle
Explanation:
I
an explanation on how the molecules in photosynthesis and cellular respiration are similar
Answer:
The two processes are similar in that they both produce energy, albeit in two different forms. They are different in that photosynthesis assembles the glucose molecule, while cellular respiration takes it apart.
meaning of balanced diet
Answer:
The diet that contains the required amount of nutrients and minerals in a proper propotion for the body is called balanced diet.
Explanation:
Which equation has water as a product in the chemical reaction?
Answer:
What are the options? If I had to guess NaOH+H2 Na+H2O
Explanation:
Answer:
B. NaOH + -> Na + H2O
Explanation: